This case story describes the Environmental Finance Center's work with six Lancaster County (PA) municipalities to conduct a stormwater management financing feasibility study.  EFC evaluated opportunities for these towns to work together to comply with stormwater regulations, reduce costs, and improve local programs.   Project components included assessing level of service for each municipality's stormwater program, gauging level of service needed to deliver a comprehensive stormwater management program, and highlighting approaches for cross-municipal collaboration.